CN105024538A - Power supply device having power factor correction circuit - Google Patents
Power supply device having power factor correction circuit Download PDFInfo
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- CN105024538A CN105024538A CN201410171693.0A CN201410171693A CN105024538A CN 105024538 A CN105024538 A CN 105024538A CN 201410171693 A CN201410171693 A CN 201410171693A CN 105024538 A CN105024538 A CN 105024538A
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- voltage
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- power factor
- factor correction
- correction circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The invention discloses a power supply device having a power factor correction circuit, which is capable of receiving the voltage of three-phase voltage. The power supply device having the power factor correction circuit comprises three rectification modules which are respectively receiving first phase voltage, second phase voltage and third phase voltage of the three-phase voltage; each rectification module comprises a filter which is used for receiving one voltage of the three phase voltage and outputting filtering voltage, a single-phase power factor correction circuit which is coupled to the filter for receiving the filtering voltage and outputting correction voltage; and the each rectification module also comprises a main transistor, a converter, at least one power factor correction controller, and a simulation controller; the converter is coupled to the output terminal of the single-phase power factor correction circuit and is connected to the voltage output terminal; the power factor correction controller is connected to a main transistor; and the simulation controller is connected to the converter. The power supply device having a power factor correction circuit eliminates the mutual interference between the rectification modules, requires less quantity of members by comparing with the traditional three-phase parallel connection power factor correction circuit, saves the cost without influencing the result, and guarantees the quality.
Description
Technical field
The invention relates to a kind of single-phase buck-boost circuit of power factor correction (buck-boost PFCcircuit), refer in particular to one and utilize up-down voltage power factor correcting circuit, can buck be improved and improve its efficiency.
Background technology
Power factor (PF) (power factor) refers to the relation between effective power and total power consumption, namely effective power is divided by the ratio of total power consumption, in general, power factor (PF) can be used for weighing the degree that is utilized of electric power, when power factor (PF) value is larger, represent electric power utilance higher.The power factor corrector be applied on power supply unit is used for greatly the time and the wave mode that control the input of adjustment AC current, make it consistent as much as possible with DC voltage wave mode, allow power factor (PF) value close to 1, avoid the electric power of power equipment system consumption to exceed its specification, produce unnecessary interference.
From the above, it is low that low-power factor represents electric power efficiency, and electric power efficiency is lower, and to represent the consume of electric power in distribution network higher; If lower power factor (PF) is not corrected lifting, Utilities Electric Co., except effective power, also will provide and the uncorrelated virtual work that works, relative, the consumption of the electric power conveying equipment such as generator, interpreter, means of delivery, even cable will be increased, just can make up lower power factor (PF); Therefore, most electronic equipment all can have power factor corrector (power factorcalibration, PFC), helps improve self energy utilization rate.
Circuit in power factor corrector can be divided into single-phase power element circuit and three phase power element circuit.Please refer to Fig. 1, is the three-phase pfc circuit that three single-phase power factor correction circuit compositions are commonly used in demonstration.As shown in Figure 1, single-phase power element circuit mainly utilizes LC filter to increase the rectifier bridge angle of flow, thus reduces current harmonics, improves power factor (PF).But, when three single phase circuits form together, easily interact, even if add isolation inductance also cannot eliminate completely, cause the efficiency of circuit and the total harmonic distortion of input current etc. to indicate also to decline to some extent, therefore, single-phase power element circuit is quite not suitable for high-power applications occasion.
Please refer to Fig. 2, is that three-phase six switch power factor correction circuit diagram is commonly used in demonstration.As shown in Figure 2, six Switch Three-Phase Active PFCs are made up of 6 power switch devices, the switch composition that upper and lower 2 switches of each brachium pontis are in parallel with it, and every phase current controls by 2 switches of this on brachium pontis.Electric current sum due to three-phase is zero, as long as so just carry out control enough to biphase current wherein, thus in actual applications, this phase maximum to absolute value of voltage does not control, and only selects other two-phase to control.The benefit done like this is the number of times reducing switch motion, thus can reduce total switching loss.But, six Switch Three-Phase power factor correction circuits use number of switches too many, and control complicated, cost is high again, and on each brachium pontis, two tandem taps exist the danger of shoot through, require just very high to the reliability that power drive controls.
Continue above-mentioned, the input power of three phase power element circuit is high, and is a steady state value, so, can use the output capacitance that capacity is less, realizes output voltage dynamic response faster and regulates.But, three phase power element circuit is difficult to control the coupling between three-phase.In single-phase power element circuit, if load equivalent is a resistance, then input power factor is 1, and in three phase power element circuit, even if load equivalent is a resistance, power factor (PF) is difficult to be satisfied value often, and reason is just that three phase power element circuit cannot take into account three-phase input current simultaneously, and independently can not control arbitrary phase input current is all sinusoidal waveform.Known techniques is improved for this problem, carries out out many typical three phase power element circuits, but the electronic component required for these typical circuits is too many, and controls complicated, and the demand for component pressure is higher, adds the burden of cost.
Single-phase power element circuit and three phase power element circuit have its advantage, but how to average out between price and performance, are still the emphasis of the research and development in power supply unit field.
In view of this, in order to equilibrium price and performance, reduce structure complexity, keep fast response time, the inventor of this case does one's utmost research, attempt different electronic components and different circuit of arranging in pairs or groups, and carry out a succession of test, finally work out a kind of power supply unit with power factor correction circuit of the present invention.
Summary of the invention
Main purpose of the present invention, be to provide a kind of power supply unit with power factor correction circuit, rectification module does not interfere with each other, the number of elements used is fewer than traditional parallel three phase power factor correction circuit, can cost be saved, but can not impact effect, take quality into account.
The object of the invention is to realize by the following technical solutions.The invention provides a kind of power supply unit with power factor correction circuit, the voltage of three-phase voltage can be received, and comprise: three rectification modules, receive the first-phase voltage of this three-phase voltage, second-phase voltage and third phase voltage respectively, and each rectification module more comprises: filter, receive the first-phase voltage of this three-phase voltage, a second-phase voltage and third phase voltage wherein voltage, and output filtering voltage; Single-phase power factor correction circuit, is coupled to this filter, receives this filtering voltage, then output calibration voltage; And more comprise main transistor; And transducer, be coupled to the output of this single-phase power factor correction circuit, and connect voltage output end, receive this correction voltage, then export output voltage; The transducer of one of them rectification module links together with the transducer of two other rectification module respectively; At least one Active PFC controller, connects this main transistor, controls this main transistor action with analog signal; And analog controller, connect this transducer, control this changer actions.
Object of the present invention also can be applied to the following technical measures to achieve further.
The aforesaid power supply unit with power factor correction circuit, wherein this transducer can be following any one: phase-shift type full-bridge converters, phase-shift type semi-bridge convertor, series resonant converter and forward type electric power converter.
The aforesaid power supply unit with power factor correction circuit, wherein this transducer is phase-shift type full-bridge converters, and comprises transformer and four transistors; Wherein the secondary side of the transformer of a transducer is connected with the secondary side of the transformer of another two transducers respectively; This analog controller connects and controls this four transistor actions, wherein, with two other coupled in parallel be chained together after two strings of transistors connect together.
The aforesaid power supply unit with power factor correction circuit, wherein this single-phase power factor correction circuit comprises bridge rectifier, and the output of this bridge rectifier connects inductance; Relative to this bridge rectifier, this main transistor and diode are connected to one end of this inductance; And this main transistor is in parallel with this transducer, this diode connects this transducer.
The aforesaid power supply unit with power factor correction circuit, it more comprises microprocessor, connect and for controlling this analog controller, wherein, this analog controller is PWM controller.
The aforesaid power supply unit with power factor correction circuit, wherein this voltage output end is provided with current sensor, be connected to this microprocessor, and for sensing the electric current of this voltage output end, and sensing result is sent to this microprocessor, this microprocessor determines whether control this transducer by this analog controller according to sensing result.
By technique scheme, the power supply unit with power factor correction circuit of the present invention at least has following advantages and beneficial effect:
(1) rectification module does not interfere with each other: traditional single phase power factor correction circuit is because of parallel connection, interfere with each other and be difficult to control, in addition, traditional single phase power factor correction circuit easily increases loss, in comparison, rectification module of the present invention can not interfere with each other, and component pressure demand reduces, and can be applied to large-power occasions again simultaneously.
(2) element demand is reduced: compared to traditional three-phase list parallel power factor correction circuit, the number of electronic components that the present invention utilizes is fewer; The present invention is the combination of power factor correction circuit and transducer, gets final product control action by analog signal, reduces complicate fabrication process degree, can save cost, and meanwhile, the impact effect because of the quantity of electronic component, does not take quality into account.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of specification, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1: the three-phase pfc circuit of three single-phase power factor correction circuit compositions is commonly used in demonstration;
Fig. 2: three-phase six switch power factor correction circuit diagram is commonly used in demonstration;
Fig. 3: a kind of Organization Chart with the power supply unit of power factor correction circuit of the present invention;
Fig. 4: the element of single-phase power factor correction circuit of the present invention and phase-shift type full-bridge converters;
Fig. 5: the element of single-phase power factor correction circuit of the present invention and phase-shift type semi-bridge convertor;
Fig. 6: the element of single-phase power factor correction circuit of the present invention and series resonant converter;
Fig. 7: the element of single-phase power factor correction circuit of the present invention and forward electric power converter.
[main element symbol description]
11: single-phase power factor correction circuit
111: main transistor
12: filter
13: transducer
131: transformer
2: Active PFC controller
3: analog controller
4: microprocessor
41: current sensor
S: first-phase voltage
R: second-phase voltage
T: third phase voltage
V1: filtering voltage
V2: correction voltage
V3: output voltage
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to a kind of embodiment, structure, feature and the effect thereof with the power supply unit of power factor correction circuit proposed according to the present invention, be described in detail as follows.
Please refer to Fig. 3, a kind of Organization Chart with the power supply unit of power factor correction circuit of the present invention.As shown in Figure 3, the present invention is a kind of power supply unit with power factor correction circuit, the voltage of three-phase voltage can be received, and comprise: three rectification modules, receive first-phase voltage S, second-phase voltage R and the third phase voltage T of this three-phase voltage respectively, and each rectification module more comprises: filter 12, receive first-phase voltage S, second-phase voltage R and a third phase voltage T wherein voltage of this three-phase voltage, and output filtering voltage V1; Single-phase power factor correction circuit 11, is coupled to this filter 12, receives this filtering voltage V1, then output calibration voltage V2; And more comprise main transistor 111; And transducer 13, be coupled to the output of this single-phase power factor correction circuit 11, and connect voltage output end 14, receive this correction voltage V2, then export output voltage V3; The transducer 13 of one of them rectification module links together with the transducer 13 of two other rectification module respectively; At least one Active PFC controller 2, connects this main transistor 111, controls this main transistor 111 action with analog signal; And analog controller 3, connect this transducer 13, control this transducer 13 action.The electric current of this voltage output end 14 is direct current, and output voltage V3 is direct current.This three-phase voltage provided by supply of electric power unit.
Please refer to Fig. 4, demonstrate the element of single-phase power factor correction circuit of the present invention and phase-shift type full-bridge converters.Please refer to Fig. 3 and Fig. 4, this transducer 13 is phase-shift type full-bridge converters, and each transducer 13 comprises transformer 131 and four transistors; The secondary side of the transformer 131 of one of them transducer 13 is connected with the secondary side of the transformer 131 of another two transducers 13 respectively; This analog controller 3 connects and controls this four transistor actions, wherein, with two other coupled in parallel be chained together after two strings of transistors connect together.Wherein, this analog controller 3 is PWM controller.
Continue above-mentioned, this single-phase power factor correction circuit 11 comprises bridge rectifier, and the output of this bridge rectifier connects inductance; Relative to this bridge rectifier, this main transistor 111 and diode are connected to one end of this inductance; And this main transistor 111 is in parallel with this transducer 13, diode is connected to this transducer 13.One electric capacity connects this diode and this transducer 13, and in parallel with this transducer 13, and in addition, this electric capacity is also connected to ground wire.
Transducer 13 of the present invention carrys out control action by one group of analog signal, therefore, in the present invention, analog controller 3 can control the action of three groups of transducers 13, and commonly uses power factor correction circuit, adopts the control mode of single phase converter, just control must can be completed by three group controllers, in comparison, the present invention can use the control mode of lower cost, but can reach effect identical with three phase power factor correction circuit.
Please refer to Fig. 3, the present invention more comprises a microprocessor 4, connect and for controlling this analog controller 3, wherein, this analog controller 3 is PWM controller; This voltage output end 14 is provided with current sensor 41, be connected to this microprocessor 4, and for sensing the electric current of this voltage output end 14, and sensing result being sent to this microprocessor 4, this microprocessor 4 determines whether control this transducer 13 by this analog controller 3 according to sensing result.
Continue above-mentioned, microprocessor 4 used in the present invention is so-called microcontroller (microcontroller unit), whether the sensing result that can compare current sensor 41 surpasss the expectation, and when surpassing the expectation, export control signal, control this phase-shift type full-bridge converters 13 by this analog controller 3.Wherein, above-mentioned voltage output end 14 is provided with current sensor 41, be connected to this microprocessor 4, and for sensing the electric current of this voltage output end, and sensing result is sent to this microprocessor, this microprocessor determines whether control this transducer 13 by this analog controller 3 according to sensing result.
This transducer 13 of the present invention can also be phase-shift type semi-bridge convertor, series resonant converter or forward electric power converter.Please refer to Fig. 5, demonstrate the element of single-phase power factor correction circuit of the present invention and phase-shift type semi-bridge convertor; As shown in Figure 5, phase-shift type semi-bridge convertor has two connected electric capacity, two transistor series, the primary side of connection transformer 131 between these two electric capacity, connects electric capacity, be connected to the primary side of transformer 131 in the middle of these two transistors.
Please refer to Fig. 6, demonstrate the element of single-phase power factor correction circuit of the present invention and series resonant converter, wherein, series resonant converter has two transistors, series connection two inductance between two transistors, then, inductance is connected with the primary side of transformer 131.Please refer to Fig. 7, demonstrate the element of single-phase power factor correction circuit of the present invention and forward electric power converter, wherein, forward electric power converter has transistor, is connected to the primary side of transformer 131.In above-mentioned, the transistor in all transducers 13 provided by the present invention, all carrys out control action by analog controller 3.Three voltages are divided into three single-phasely to process by the present invention, avoid the problem of resistance to pressure deficiency.
After above-mentioned detailed description, had a clear understanding of framework of the present invention, sum up above-mentioned, the present invention has the following advantages:
(1) rectification module does not interfere with each other: traditional single phase power factor correction circuit is because of parallel connection, interfere with each other and be difficult to control, in addition, traditional single phase power factor correction circuit easily increases loss, in comparison, rectification module of the present invention can not interfere with each other, and component pressure demand reduces, and can be applied to large-power occasions again simultaneously.
(2) element demand is reduced: compared to traditional three-phase list parallel power factor correction circuit, the number of electronic components that the present invention utilizes is fewer; The present invention is the combination of power factor correction circuit and transducer, gets final product control action by analog signal, reduces process complexity, can save cost, and meanwhile, the impact effect because of the quantity of electronic component, does not take quality into account.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. there is a power supply unit for power factor correction circuit, the voltage of three-phase voltage can be received, it is characterized in that it comprises:
Three rectification modules, receive the first-phase voltage of this three-phase voltage, second-phase voltage and third phase voltage respectively, and each rectification module more comprise:
Filter, receives the first-phase voltage of this three-phase voltage, a second-phase voltage and third phase voltage wherein voltage, and output filtering voltage;
Single-phase power factor correction circuit, is coupled to this filter, receives this filtering voltage, then output calibration voltage; And more comprise main transistor; And
Transducer, is coupled to the output of this single-phase power factor correction circuit, and connects voltage output end, receive this correction voltage, then export output voltage; The transducer of one of them rectification module links together with the transducer of two other rectification module respectively;
At least one Active PFC controller, connects this main transistor, to control this main transistor action; And
Analog controller, connects this transducer, controls this changer actions.
2. there is the power supply unit of power factor correction circuit as claimed in claim 1, it is characterized in that wherein this transducer can be following any one: phase-shift type full-bridge converters, phase-shift type semi-bridge convertor, series resonant converter and forward type electric power converter.
3. there is the power supply unit of power factor correction circuit as claimed in claim 2, it is characterized in that wherein this transducer is phase-shift type full-bridge converters, and comprise transformer and four transistors; Wherein the secondary side of the transformer of a transducer is connected with the secondary side of the transformer of another two transducers respectively; This analog controller connects and controls this four transistor actions, wherein, with two other coupled in parallel be chained together after two strings of transistors connect together.
4. have the power supply unit of power factor correction circuit as claimed in claim 3, it is characterized in that wherein this single-phase power factor correction circuit comprises bridge rectifier, the output of this bridge rectifier connects inductance; Relative to this bridge rectifier, this main transistor and diode are connected to one end of this inductance; And this main transistor is in parallel with this transducer, this diode connects this transducer.
5. there is the power supply unit of power factor correction circuit as claimed in claim 1, it is characterized in that it more comprises microprocessor, connect and for controlling this analog controller, wherein, this analog controller is PWM controller.
6. there is the power supply unit of power factor correction circuit as claimed in claim 5, it is characterized in that wherein this voltage output end is provided with current sensor, be connected to this microprocessor, and for sensing the electric current of this voltage output end, and sensing result is sent to this microprocessor, this microprocessor determines whether control this transducer by this analog controller according to sensing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171693.0A CN105024538B (en) | 2014-04-25 | 2014-04-25 | Power supply unit with power factor correction circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171693.0A CN105024538B (en) | 2014-04-25 | 2014-04-25 | Power supply unit with power factor correction circuit |
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| Publication Number | Publication Date |
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| CN105024538A true CN105024538A (en) | 2015-11-04 |
| CN105024538B CN105024538B (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410171693.0A Active CN105024538B (en) | 2014-04-25 | 2014-04-25 | Power supply unit with power factor correction circuit |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040150377A1 (en) * | 2001-05-21 | 2004-08-05 | Elek Joseph F. | Power system having a power factor correction circuit |
| CN1817543A (en) * | 2005-02-07 | 2006-08-16 | 林肯环球公司 | Modular power source for electric arc welding and output chopper |
| CN102356537A (en) * | 2009-03-18 | 2012-02-15 | 株式会社村田制作所 | Pfc converter |
-
2014
- 2014-04-25 CN CN201410171693.0A patent/CN105024538B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040150377A1 (en) * | 2001-05-21 | 2004-08-05 | Elek Joseph F. | Power system having a power factor correction circuit |
| CN1817543A (en) * | 2005-02-07 | 2006-08-16 | 林肯环球公司 | Modular power source for electric arc welding and output chopper |
| CN102356537A (en) * | 2009-03-18 | 2012-02-15 | 株式会社村田制作所 | Pfc converter |
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| CN105024538B (en) | 2019-01-15 |
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